Fixed my Nuvi I thought destined for the trash.

Sunglasses Review Powerful External Amplified Antenna Receiver

As many reviews have suggested, I also had a Garmin Nuvi 660 that had been slowly getting worse and worse reception until it finally would get no signal at all. I had it for over 3 years and traveled extensively with it, so figured it was just the end of the road. I read something about trying this product and figured it was worth a shot for the price. This completely fixed the problem, and in fact, never have any issues with the unit trying to find satellites. The only drawback is that for traveling purposes, having to takes this along is a bit of a headache. (I'm talking about on planes and using rental cars.) As I have stopped traveling and can just keep it in one car, then it is not really an issue.

Overall, very pleased. It saved me from having to buy a new GPS.